Signaling system



Dec. 18, 1945. 1 H, COOK 2,390,992

SIGNALING SYSTEM Filed Sept. 28, 1945 4 Sheets-Sheet .2

IN V EN TOR.

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Dec. 18, `1945. J. H. COOK SIGNALING SYSTEM Filed spt. 28, 1945 4 sneets-shet 5 Jak ZZ 0005' INVEN TOR TTO/'PA/[K Dec. 18, 1945.Y .1. H. COOK SIGNALING SYSTEM Filed Sept. 28, 1945 4 Sheets-Sheet 4 Jznj 60075 IN V EN TOR.

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Patented Dec. 18, 1945 UNITEDt STATESV ?TENT .QFFICE SIGNAL-ING SYSTEM .101m fr 006k, Rock Island, nl. y

Appiiceaon september 2s, 194s, serial Nd. 594,169v l 2 Claims.

This invention relates to a signaling system and while it is primarily designed as a burglar alarm for use in banks and other places, it is to be understood that it can be employed wherever it is desired to maintain a signal `system in operative condition even though a portion of the apparatus should become inoperative because of' intentional cutting of the circuit, or short circuiting or some other causes.

' Another vobject is to provide asignaling 'system which is simple and dependable and which, in the event cf trouble inthe main circuit. can quickly be placed in service even though under normal conditions the apparatus would become inoperative.

A still further object is to provide a signaling system made-up primarily of metallic circuits sections of whichY can bey grounded, when desired, for test purposes.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully. described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

In the accompanying'drawings the preferred' form of the invention'has beenshown, the apparatus being illustrated as combined with a money drawer whereby, when an attempt is made to remove the drawer or to remove money from .the.drawer, or when .the circuit is intentionally closed by a push-button or the like, the system will be operated.

In said drawings.

Fig. l is a circuit diagram showing structure forming part of the invention.

Y Figure 2 is a top plan of themoney drawer and attendant parts.

Figs. 3 and 4 are sections taken, respectively, on the' lines 3--3 and 4 4. of' Fig.. 2.,

Fig. 5 is an elevation of the circuit-controlling parts.

Fig. 6 is atop plan of the structure depicted iny Fig. 5.

Fig. '7 is a transverse section of the structure shown in Fig. 5.

Fig. 8' is a longitudinal section taken adjacent theelectro-magnet, parts being broken. away.

Fig. 9 is a section on the line 5 9 of Fig- 5.

Referring to Figs. 2 3' and 4, there is shown a money box I, comprising a double-layer bottom 2, side-walls `3, anda double-layer inner end 55 wall 4. The inner layer ofthe end wall 4 is not quite so high as the outer wall thereof, thereby presenting a horizontal shoulder 5.'

A partition 6 extends across the moneybox I, and denes therein a rear compartment T. A lid 3 closes the upper end of the compartment 1 and rests upon and is secured tov the partition 6, the side walls tl and the shoulder 5, the lid abutting againstV the upstanding portion of I the outer layer of the end lwall 4. The partitiontf and the lid 8 have alined slots IU.

The upper layer II of the bottom ofthe money box extends from the open frontA I 2 of the box, backwardly to the' partition 6. The upper Alayer II has -a longitudinal opening I4; closedatits lower end by the lower layer of the bottom-2;

A post I5 is located in vthe compartment"1`,.and is fixed in the angle defined by the partition: E and yone of the side walls 3.- A block I6 forms part of the end wall 4! and is of less heightthan the inner layer of that wall, to leave. a space between the upper surface of the block andthe lid 8. An insulating sheet II issecured to vtheforward surface of the block I6, and extends. between the side walls 3 and between the ldl'and the lower member of. the bottom 2, and'formsa forwardv closure Yfor the space above the block' [6.

A .box-like money drawer I8, openat its top and at its're'ar end, is mounted to reciprocate in the money box I, on the upper layer I I of theV bottom 2` of the box, and'when fully closed, the drawer abuts against the partition 6,. thedrawer being adapted to receive a stack M ofpaper money or other thing of value. and not to'be stolen. v

A transverse shaft I9, located in the compartment 1, has its end portions mounted -to rock in the side walls 3 of the money box I,. and is supplied intermediate its ends with a forwardly presented arm 20, passing. through the slot Illof the partition 5. The arm 2B is downwardly con caved in its `intermediate portion, 2l, te restD on the stack M of money in. the drawer 18,1 andto provide an elongatednger piece 22, facilitating the lifting of the arm by an operator, when money or the like is to be placed beneath it- In order to constrain the intermediate portion 2| of the arm 20 to bear yieldably onthe stack M of money, a portion of the shaft I Q is surrounded by a coiled spring 23, the inner' end of the spring. being engaged withY the armlj the outer end of the spring` bearing upon a wear plate 24 on the post I5.

A` keeper 25` is mounted on the shaft I9`,. for

adjustment :circumferentially thereof, and is held in adjusted positions by a set screw 26, threaded into the keeper and engaging the shaft. The keeper has a peripheral seat 21, in'which is adapted to engage, the upper portion of a spring latch 28, having its lower end secured at 29 to the post I5. The purpose of the keeper 25 and the latch 28 is to hold the arm 20, releasably, in a substantially vertical, elevated, out-of-the-Way position, against the action of the spring 23, should the operator desire.

Conductor connectors 29 and 30 are secured to the upper surface ofthe block |6 of the money box I. Likewise secured to the block I 6 is the oiset foot 3| of a spring tongue 32 constituting the operating switch. The free end of the tongue 32 is spaced from, but is adapted to engage, an adjustable contact screw 33, threaded into a conductor connector 34, secured to one side Wall 3 oi.' the money box I.

A cam is adjustable circumferentially of the shaft I9, but is fixed thereto .by a set screw 36, threaded into the cam. The cam 35 is located underneath but normally out of contact with the spring tongue 32, and is so located as to raise the free end of the tongue and cause it to make contact with the screw 33 or its equivalent. This action occurs if the arm 20 is lifted to release money or if the drawer is pulled out. In the latter case the arm 20 will drop into recess I4,

rotate the cam 35 and make a contact between tongue 32 and screw 33.

A resilient brush 31 is provided and bears against the shaft I9, the lateral foot 38 of the brush being secured tothe lower layer of the 43, forming part of an upright 44 on the base 39v and provided at its upper end with an inverted, U-shaped bracket 45. 'I'he base 39 carries connectors 11, 18, 19 and 80.

An armature base 46 is secured to the part 39 andhas upstanding, terminal ears 41. Bearing screws 48 are threaded into the ears, and are held in adjusted positions by lock nuts 49.

A shaft 50 is mounted to rock on the bearing screws 48. Intermediate its ends, the shaft 50 carries an upwardly extended armature 5|, which can swing as the shaft 50 rocks about its axis, the armature carrying a part 52, which is responsive to the core 42 of the electro-magnet 4|.

A post 53 is erected on the base 39 and has a nbearing 54 at its upper end, a winding shaft 55 being frictionally held in the bearing, the winding shaft being rotated by a hand wheel 56 thereon. One end of a pull-spring 51 issecured to the armature 5 I, the opposite end of the spring being attached to a flexible element 58, wound about and secured to the shaft 55.

The effort of the spring 51 is to retract the amature 5I `with respect to the electro-magnet 4|, and the effectiveness of the spring may be varied by rotating the shaft 55. The movement of the armature, away from .the electro-magnet, is limited by an insulated stop screw 59, threaded into the bracket 45, and held against rotation,

by va lock nut 60.

i A transversely extending piece of insulating material 6I is mounted on the eye 43 of the upright 44, and -to the insulating material is ,secured an L-shaped support 62. A resilient tongue 63 is secured at its outer end to the support 62. A contact screw 64 is threaded into the bracket 45, and is held in adjusted positions by a lock nut 65. The inner end of the resilient .tongue 63 extends between the screw 64 and the armature 5 I.

A cross-arm 66 is secured to the armature 5|.

On opposite sides of the electro-magnet 4I are located normally open switches, one switch comprising a pair of upstanding spring strips 61 and 68, the other switch comprising a pair of upstanding spring strips 69 and 10. The lower ends of the strips 61-68-69-10 are secured to the base 39. 'I'he strips 61 and 69 are of such height that they may be engaged by the crossarm 66 on the armature 5 I. Referring to Fig. 1, the numeral 1| indicates a secondary circuit in which is interposed an audible signal 12, and a source 13 of electrical energy. The switch strips 69 and 10 are interposed in the signal circuit 1I, and that circuit is normally open.

The numeral 14 indicates a secondary circuit in which is interposed a visible signal 15, and a source 16 of electrical energy. The switch strips 61 and' 68 are interposed inthe signal circuit 14, and the circuit 14 is normally open.

At 84 there appears one source of electrical energy included in a main metallic circuit and to be included in the first section of said circuit when split as hereinafter explained. To one side of this source 84 is connected a conductor 85, joined to a connector 19, and to the connector is joined one end 86 of a winding 81 disposed about the core 42 of the electro-magnet 4I. The opposite end 88 of the winding 81 is joined to a connector 11.

From the connector 11, a. conductorA 89 leads to the connector 29 on the money box I, a small resistance ||3 and a single-pole, single-throw, normally closed switch 90 being interposed in the conductor 89. A conductor 9| is joined to the connector 29 and to the connector 34 which carries the contact screw 33.

To the foot 38 of the brush 31 is joined a conductor 92, connected to the member 30, and from the connector 30, a conductor 93 leads to a ground 94.

From the opposite side of the source 84, hereinbefore mentioned, a conductor 91extends, and is connected to the cross-piece 46, which supports, and is electrically assembled with, the shaft 50, and the armature 5|.

From the base 46, a conductor 98 leads to a ground 99, a normally closed switch |00 being interposed therein.

At |0| there appears another source of electrical energy forming a part of the main metallic circuit and' adapted, when the circuit is split as hereinafter explained, to be included in the second section of said circuit. One side of this source is connected at I II to the base 46. To the opposite side of the source I 0I is connected .a conductor |02, in which a small resistance I|4 is interposed, the conductor |02 leading to the connector 18, and to the connector 18 is joined one end |03 of a second winding |04, disposed about the core 42 of the electro-magnet 4I in parallel relation to the winding 81. The opposite end |05 of the winding |04 is joined to the connector 80.

From the connector extends a conductor |06, a normally closed, single-throw, single pole switch |01 being interposed in the conductor |06. The conductor |06 is joined to the foot 3| of the spring tongue 32 on the money box I, and since the parts 3|v and 32 arel integral, they arel electrically connected, as indicated diagrammatically at; H'Z'in Fig. 1.

The tongueSSof Figs. 6, -and l, has joined thereto. by way of the support 82, a conductor |08, the conductor |08 being; joined; tothe switch |01. A conductor |09-is connected electrically te. the screw 64, and to the conductor-'89m the v-ici-n.- ity of the switch 90., A normally closed singlethrow, double -pole switch l0 is interposed the conductors |08- and |09 and is located between the switches. 90 and |01 on the one. hand, and the tongue 63, the screw 64 and the tongue 6.3,` onthe. other hand.

Under normal conditions the various switches 90, |00, |01 and H0 arewclosed and the switch termed by the, spring-tongue 3.2 is out` of contact both withthe contact 33 and with the cam 35.

, The installation shownV and. described, shows the signal apparatus combined with a money drawer. Thus shouldan attempt be made to re more some of the money from the. drawer by first lifting the arm 20, or byremoving the drawer so as to permit the arm to, drop, the apparatus. would promptly operate as follows:

Arm 20, when shifted, will move the cam 35 against. the tongue 32 thereby establishing a contact between the tongue and the ground and alsoa contact between the tongue and the part. 33. As a result of this operation the primary metallic. circuit will be closed. This circuit starting at 84,A extends through the. connections 85, 19. and 86 to the coil 81 and thence through the. connections 88, 1T and 89., 29. and 9| to COntact3-33. Assuming that 433 is in engagement with tongue 32 which has been lifted by the. movement of cam 35, the circuit continues 'by way of connections. ||2, 3|, |06., 8 0, |05. and coil [lillV through connections |03, 18, |02 and H4. to battery |0l. The. positive pole of this battery |0|.is connected at to the base 46 whi-ch, in turn,l is electrically connected as at 91 to the negative pole of battery 84 so that the circuit thus is completed. As the metallic circuit thus completed is more emcient than a grounded circuit, the fact that base 43 is grounded through connection 98 and that cam 35 is grounded through connections 31, 92 and 93, will not aiect the operation of the circuit.

The instant the metallic Vcircuit is closed as explained, the electro-magnet is of course energized and attracts the armature 5|, causing it to make contact with the tongue 63 and force said tongue into engagement with the contact screw 64. Under normal conditions, prior to energizing the electro-magnet, there is no circuit established through the connections |08 and |09. When the electro-magnet is energized, however, and the tongue 63 brought into engagement with armature 5| and contact screw 64, the current from battery |0| flows through connection to base 46 and thence through armature 5| to tongue 63, connection |08, switch I|0 and connection |06 to coil |04 and then by way of connections |03, 18, |02, and H4, back-to the battery IDI. At the same time a circuit is set up from lbattery 84 through :connections H3, 85, 19 and 86, to coil 81 and thence through connections 88, 11 and 88 to connection |09, back through switch |0 and connection |09 to contact screw 64, tongue 83, armature 5|, base 46 and connection 91 to the negative pole of battery 84. Consequently the electromagnet is energized by separate circuits from the respective batteries after it has rst been energized by the two 'batteries in series. Therefore, should either of these secondary circuits of the the circuit at {i2- 33;

twobatteries become broken from` any cause. the remaining battery would continue to maintain the; eleotro-nimmet` in its energized condition so thatV the armatm'e 5| would` be held pressed' against: tongue 63 and hold it, in. turn, pressed against; thecontact screw 64.

By means of the switches I 8; |0188; and |00, various parts of the circuit canbe tested from time to time inan erfurt to-locate any breakfwhich may have occurredftherein.

It istozbeunderstood that'. every time the arma trl-re.v 5t is attracted by its magnet, the two circuits containingthe: respectivebatteries4 13' and 1:61 will he closed by the member thereby energizing the respective signal devices.

- Shouldithecontact at. 33,- B-Zand 35 beY open' at. thetime` the individual circuitsV of eitheno they batteries 84:' and |01` is. broken, the signal' devices would still operate upon theY closingof For example, assuming thatthe'connection llihas beenbroken, the closing of the circuitat 32--33 would result in the ow= of current from-battery 84 through connectionsl85, 19 and 86 tocoil 81 and thence by-way of connectionsBS, 11 and 891 to connection 9|,

contact 33, tongue 32, shifting element 35 and connections 31, 38, 92, and 83 to ground'.- As the negative pole of battery 84 is connected to ground by way of the connections 91, base .96, 98, and Aswitch |00, la grounded circuit thus wouldbe established suiiicient to energize the electro-magnel; and aetuate the amature 5| with the resultthat both signal circuits would be closed.

Should the break occur, for example, e159?, the

closing ofthe circuit between 32 and 33 would result flow of current from lbattery |0 through connection to base 46-andthence to groundvby way of connections 98 and |00. The negati-ve pole of battery |0|, however, would be connected to ground by means of the conductors H4, |02, |03, coil |04; connections |05, |06 and ||2 to tongue 32 and thence by way of the elements .35, 31', 38, 92, 30 and 93 to ground at 94. Thus the grounded circuit would be completed through battery till and the electro-magnet would be energized even though battery 84 should be'out, of service.

The switches 90, |00, |01 and ||0 have been provided primarily for test Ipurposes. Normally they are closed. Tests are made as follows:

First-By opening the switch |00 the continuity of the conductors 89-I06 can be tested. If this switch is open and the money box mechanism is operated, the signals will be energized if the metallic circuit is in Working condition. If the switch |00 is closed and connection |06 shorted, the switch |01 should be opened and the money box mechanism operated. This will bring in the signals by closing a ground circuit which leads from the source 84 through connections 85 and 86 to the winding 81 and thence by way of the connections 89, switch and tongue 32 to the ground. The negative side of the source 84 is connected at 91 to base 46 and thence to ground. Thus if the connection |06 should be interfered with or switch |01 :be opened, the winding 81 will act to energize the magnet and cause the signal devices to be energized,

Second-Should the connection 89 be either broken or grounded, the switch 90 is opened and the other ground circuit will be established when closed by the tongue 32. This circuit would include the connection leading from the source |0| to the base 46 to ground and from the negative terminal of the source through connections |02.

Winding |04 and connections |05, |06 andi32 to ground. Thus one of the'secondar'y or signal circuits would remain closed even though the connections |06 and/or 89 should be Ibroken andthe location of the break can be located by tests in which the respectiv'e switches 90 and |01 Vare separately opened.

From the foregoing it will be noted that normally there'is maintained a metallic circuit which is closed by removal of the drawer I8 or by lifting arm 20 to a position above normal for the purpose of removing money from beneath it or for locking it in fully raised position. The circuit can also be closed by a push-button I3 or other switch' suitably located 'whereby the signaling system can be operated in the event of re or other emergency. Should'either the connection 89 or the connection |06 become broken, the remaining side of the circuit which was not broken will be grounded at 99 through connection |00 so that shifting'of the cam will result in operation of the signaling system, one side of the circuit being metallic while the other side is ground. In case of a short between the connections 89 and |06, however, it would be necessary to open either switch 90 or switch |01. Either would clear the trouble and the same procedure should be followed in the event of a ground in either connection 89 or connection |06, whichever clears the trouble. The switches 90, |01, and ||0 may also be manipulated for testing the apparatus to determine whether the various parts thereof are in Working condition.

It is to be understood of course that switch l |0 is used for breaking the independent metallic circuits after they have been established and for the purpose of discontinuing the functioning of th signaling elements.

What is claimedis:

1. In a signal apparatus the combination with a normally open signal circuit, of an electromagnet having separate coils, an armature for the magnet positioned to close the signal circuit when the magnet is energized, an actuating element normally grounded, a normally open switch positioned for actuation by said element, said switch including a tongue and a contact cooperating with the tongue, an electrical connection between said contact and one end of one of the coils, a battery having its positive pole connected to the other end of said coil and its negative pole connected to the armature and to ground, an electrical connection between the tongue and one end of the other coil, a second battery having its negative pole connected to the other end of said second coil, a grounded electrical connection between the positive pole of said second battery and the connection between the negative pole of the rst battery and the armature, and means operated by the movement of the armature when its magnet is energized, for dividing the apparatus into two independent circuits each including one of the batteries and one of the coils.

2. In a signal apparatus the combination with a normally open signal circuit, of an electromagnet having separate coils, an armature for the magnet positioned to close the signal circuit when the magnet is energized, an actuating element normally grounded, a normally open switchv positioned for actuation by said element, said switch including a tongue and a contact cooperating with the tongue, an electrical connection between said contact and one end of one of the coils, a battery having its positive pole connected to the other end of said coil and its negative pole connected to the armature and to ground, an electrical connection between the tongue and one end of the other coil, a second battery having its negative pole connected to the other end of said second coil, a grounded electrical connection between the positive pole of said second battery and the connection between the negative pole of the first battery and the armature, and means operated by the movement of the armature when its magnet is energized, for dividing the apparatus into two independent circuits each including one of the batteries and one of the coils, said means including a contact element electrically connected to one end of one of the coils and a contact element electrically connected to one end of the other coil.

JOHN H. COOK. 

